Study of Dynamic Performance of Thermal Units with Asynchronous Tielines using Fuzzy Based Controller

This paper investigates the load frequency control problem for a multi-area power system taking into consideration system parameter variations. This paper proposes an intelligent control scheme for load frequency control (LFC) of interconnected power systems. A fuzzy logic based integral controller is proposed for two area power system interconnected via parallel ac/dc transmission link. The simulation studies are carried out for a two area interconnected power system with reheat steam turbine for simplicity and without loss of generality. Suitable solution for load frequency control problem of two areas electrical power system is obtained by means of improving dynamic performance of power system under study. Robustness of controller is also checked by varying parameters. Simulation results indicate that the proposed control scheme work well when compared with others.